TyneStack Ltd
Senior Platform Architect
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Senior Platform Architect / Principal.NET Engineer (.NET / Azure / Cloud Architecture)
Location: Newcastle Upon Tyne | Hybrid (3 Days Office / 2 Days Home)
Salary: £65,000–£75,000
Type: Full-time, Permanent
Overview
A leading WealthTech organisation is looking to appoint a Senior Platform Architect / Principal .NET Engineer to help shape the future of its cloud platform and software architecture.
This is a hands-on technical leadership role, not a people management position. You’ll work alongside Heads of Development, Technical Leads, and senior engineers to define architectural direction, modernise enterprise applications, and drive engineering excellence across multiple development teams.
Working within a modern Microsoft technology environment, you’ll play a key role in designing scalable Azure-based solutions, influencing engineering standards, and supporting the transition towards cloud-native services, distributed systems, and modern software architecture.
Key Responsibilities
- Design scalable Azure-based platform architecture across multiple business-critical systems
- Define technical solutions for new projects and major platform enhancements
- Work closely with senior technology leaders to shape long-term architecture strategy
- Modernise existing.NET applications into cloud-native Azure services
- Design secure, resilient, and highly available distributed systems
- Lead architecture discussions across multiple development teams
- Drive engineering best practices around scalability, observability, and maintainability
- Mentor developers and provide technical leadership across engineering teams
- Collaborate with Infrastructure, DevOps, and Data teams to ensure platform consistency
- Review existing systems and identify opportunities for technical improvement and simplification
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Requirements
- Significant commercial experience developing enterprise applications using C# and.NET
- Strong Microsoft Azure platform experience
- Experience designing scalable distributed systems
- Commercial experience with Microservices and Event-Driven Architecture
- Experience with Azure Service Bus or similar messaging technologies
- Strong knowledge of Azure App Services, Azure Functions, and Azure Storage
- Experience designing APIs and integration services
- Strong SQL Server, Azure DevOps, and CI/CD experience
- Excellent communication skills with the ability to influence technical direction
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Desirable
- Experience modernising legacy applications
- Cloud migration project experience
- Docker and Kubernetes experience
- Infrastructure as Code exposure
- Azure monitoring and observability tools
- Event Sourcing, CQRS, and Domain-Driven Design (DDD)
- Financial Services or other regulated industry experience
- Previous experience as a Principal Engineer, Technical Lead, or Software Architect
What’s on Offer
- Salary up to £75,000
- Hybrid working arrangement
- Opportunity to influence architecture across one of the UK’s largest WealthTech platforms
- Significant investment in Azure, AI, and modern engineering practices
- Modern engineering culture with long-term technology investment
- Excellent pension and benefits package
- Free onsite parking
- Career progression through a growing technology organisation
- 30 days annual leave including bank holidays, increasing with service
Apply
If you’re an experienced .NET Architect or Principal Engineer looking to influence the technical direction of large-scale cloud platforms while remaining hands-on with modern Microsoft technologies, apply now or get in touch for a confidential discussion.
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